Move PathExists to base namespace.

chrome/browser/mac/master_prefs.mm

 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/mac/master_prefs.h"
 
 #include "base/file_util.h"
 #include "base/mac/foundation_util.h"
 #include "chrome/common/chrome_paths_internal.h"
 #include "chrome/common/chrome_version_info.h"
@@ skipping 27 matching lines @@
 
   // On official builds, try
   //~/Library/Application Support/Google/Chrome/Google Chrome Master Preferences
   // On chromium builds, try
   //~/Library/Application Support/Chromium/Chromium Master Preferences
   // This intentionally doesn't use eventual --user-data-dir overrides.
   base::FilePath user_application_support_path;
   if (chrome::GetDefaultUserDataDirectory(&user_application_support_path)) {
     user_application_support_path =
         user_application_support_path.Append(kMasterPreferencesFileName);
-    if (file_util::PathExists(user_application_support_path))
+    if (base::PathExists(user_application_support_path))
       return user_application_support_path;
   }
 
   // On official builds, try /Library/Google/Google Chrome Master Preferences
   // On chromium builds, try
   // /Library/Application Support/Chromium/Chromium Master Preferences
   base::FilePath search_path;
   if (!base::mac::GetLocalDirectory(kSearchPath, &search_path))
     return base::FilePath();
 
   return search_path.Append(kMasterPreferencesDirectory)
                     .Append(kMasterPreferencesFileName);
 }
 
 }  // namespace master_prefs